MESON Chess Problem Database

Problem Display
PID: 47869 (8/3Q4/8/4k1BK/8/8/4P3/8 w - - 0 1)

Kuligin, Nikolai Volodimirovich

Uralski Problemist, 2003

8/3Q4/8/4k1BK/8/8/4P3/8

#2

4 + 1

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Bc1?
      • 1...Kf6
        • 2.Bb2#
      • 1...Ke4!
    • 1.Bd2?
      • 1...Kf6
        • 2.Bc3#
      • 1...Ke4!
    • 1.Bh6?
      • 1...Kf6
        • 2.Bg7#
      • 1...Ke4!
    • 1.Qc6?
      • 1...Kf5
        • 2.Qd5#
      • 1...Kd4!
  • Keys
    • 1.Be3!
      • 1...Ke4
        • 2.Qe6#
      • 1...Kf6
        • 2.Bd4#

Anticipated by 207488(1871), 249380(1969)

This anticipates 243137(2018)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);P-FLIGHT::QAR2(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(B);
    • Vars
      • K(a);P-FLIGHT::QAR2(D)
      • K(a);S_FLIGHT::B(B)
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